When I start debug mode in NXP S32 Design Studio with USB Multilink Universal, I got message popped up, "Reset scriptfile may have caused loss of communications. Disable reset scriptfile? Yes or No", then "The target may have entered reset escalation. Please power cycle the board.", then on console an error shown up, "error in ONCE status register occurred during instruction executes."

I don't what's going on. I think I have updated the driver and firmware. The both LEDs on the multilink tool are illuminated when connected to target and PC.

We are working on Panther MPC5744p. This is the first attempt. I just installed the utility from CD and tried to update the firmware successfully.The HW connection looks good and both LEDs are ON all the time.

Yes, I created a new default project in S32 Design Studio without any change even the debugger configuration.

I have the HW team checked the signals on JTAG. They have an external watchdog connected to Panther, which generates RESET signal to Panther.

So, as you mentioned, it's the root cause. HW team informed that they fixed the issue. Now actually the debug session created and we're able to debug code.